How can this be converted to the qualitative assessment of urine ketones?

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Prerequisites

• [X] Put an X between the brackets on this line if you have done all of the following:
  • Checked the online documentation: https://mimic.mit.edu/
  • Checked that your issue isn't already addressed: https://github.com/MIT-LCP/mimic-code/issues?utf8=%E2%9C%93&q=

Description

Hello, everyone. I am using MIMIC Ⅳ 2.0 database query urine ketone body found itemid '51484' is in the hematology test mode, the measurement of the specific value, I would like to ask this can be converted to common “negative”, “+”, “++”, “+++”, “+++”? ”, “++”, “+++”? Thanks for the time and resources you've spent on this!